July 24 (Reuters) - The fanfare around Margot Robbie-starrer "Barbie" could jolt the iconic Mattel (MAT.O) doll's sales out of a year-long slump, but Wall Street thinks the party in pink will be short-lived. While Mattel will report second-quarter results on Wednesday, days after the theatrical release of the movie, analysts say the boost for Barbie sales will be most pronounced in the quarter ending Sept. 29 before tapering off. Retailers worldwide have also pitched in, with brands from Zara (ITX.MC) to H&M (HMb.ST) and Gap rolling out themed merchandise like Barbie hoodies, perfumes and toothbrushes. But its gross billings - or the amount invoiced to customers - fell behind Hot Wheels in the first quarter of 2023. Mattel's forward 12-month price-to-earnings multiple (P/E), a common benchmark for valuing stocks, is 16.01, higher than 13.6 for Hasbro.

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Persons: Margot Robbie, Barbie, Arpiné Kocharyan, Kocharyan, Ryan Gosling, Ken, Warner Bros, Zachary, Carol Osborne, Savyata Mishra, Devika Organizations: Mattel, UBS, Warner, Sunday, Reuters Graphics Reuters, CFRA Research, University of South, Muma College of Business, Hasbro, Thomson Locations: Zara, United States, Canada, Bengaluru